The principle of the centrifugal spray dryer is that the air is filtered and heated and then enters the air distributor at the top of the dryer. The hot air spirals evenly into the drying chamber. The high speed centrifugal atomizer at the top of the tower (swivel) is atomized into tiny droplets of mist, contacting with the hot air and flowing into the finished product in a very short time. The finished product is continuously output from the bottom of the drying tower and the cyclone separator, and the waste gas is discharged by the induced draft fan.